Knife



FIG. 1 is a front perspective view of the present new design of a knife;

FIG. 2 is a side view of the present design, the opposite side view is amirror image thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front end view thereof; and,

FIG. 6 is a rear end view thereof.

The ornamental design for a knife, as shown and described.